Re: 8.3 .4 + Vista + MingW + initdb = ACCESS_DENIED

Dave Page wrote:
>> The reason it should be in the Global namespace is that shmem is one part of
>> detecting an existing postmaster. Especially in situations where the db is started
>> by hand, the protection against duplicate startup is important.
>>     
>
> Yeah, as Magnus reminded me.
>   

IMNSHO we need to find a different exclusion mechanism that isn't as 
cumbersome and surrounded by caveats as this one.

The buildfarm also uses an exclusion mechanism, based on Perl's flock(), 
and it's a simple one line call. AFAIK that works just fine on Windows 
(I will double check). If so, we should possibly look at how Perl does 
that on Windows.

cheers

andrew